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A well-maintained relational DBMS has a high level of data integrity. What features of a relational DBMS contribute towards this level of integrity? Relational DBMS gives high
why shadow copy technique is used?
Define Serializable schedule Serializable schedule: An interleaved schedule of much more than one transaction is known as a serializable schedule, if it is equal to some serial
HOW MANY TYPES OF VIEWS
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
what is physical data structure
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
What is a database? Database - Basically in simple terms A database is a collection of inter related data and/or information stored so which it is available to several users
Attributes attached to an entity can be of various types. Simple The attribute that cannot be further separated into smaller parts and shows the basic meaning is known as a
Before we talk about the relational model in more detail, let us first define some very basic terms used in this model. Tuple Every row in a table shows a record and is cal
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